3
1 Safety Precautions
1.1.
General Guidelines
1.
IMPORTANT SAFETY NOTICE
There are special components used in this equipment
which are important for safety. These parts are marked by
in the Schematic Diagrams, Circuit Board Layout,
Exploded Views and Replacement Parts List. It is essen-
tial that these critical parts should be replaced with manu-
facturer’s specified parts to prevent X-RADIATION,
shock, fire, or other hazards. Do not modify the original
design without permission of manufacturer.
2. An Isolation Transformer should always be used during
the servicing of AC Adaptor whose chassis is not isolated
from the AC power line. Use a transformer of adequate
power rating as this protects the technician from acci-
dents resulting in personal injury from electrical shocks. It
will also protect AC Adaptor from being damaged by acci-
dental shorting that may occur during servicing.
3. When servicing, observe the original lead dress. If a short
circuit is found, replace all parts which have been over-
heated or damaged by the short circuit.
4. After servicing, see to it that all the protective devices
such as insulation barriers, insulation papers shields are
properly installed.
5. After servicing, make the following leakage current
checks to prevent the customer from being exposed to
shock hazards.
1.2.
Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the
two prongs on the plug.
2. Measure the resistance value, with an ohmmeter,
between the jumpered AC plug and each exposed metal-
lic cabinet part on the equipment such as screwheads,
connectors, control shafts, etc. When the exposed metal-
lic part has a return path to the chassis, the reading
should be between 1 M
Ω
and 5.2 M
Ω
. When the exposed
metal does not have a return path to the chassis, the
reading must be infinity.
1.3.
Leakage Current Hot Check
(See Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use
an isolation transformer for this check.
2. Connect a 1.5 k
Ω
, 10 W resistor, in parallel with a 0.15
μ
F
capacitor, between each exposed metallic part on the set
and a good earth ground, as shown in Figure 1.
3. Use an AC voltmeter, with 1 k
Ω
/V or more sensitivity, to
measure the potential across the resistor.
4. Check each exposed metallic part, and measure the volt-
age at each point.
5. Reverse the AC plug in the AC outlet and repeat each of
the above measurements.
6. The potential at any point should not exceed 0.75 V RMS.
A leakage current tester (Simpson Model 229 or equiva-
lent) may be used to make the hot checks, leakage cur-
rent must not exceed 1/2 mA. In case a measurement is
outside of the limits specified, there is a possibility of a
shock hazard, and the equipment should be repaired and
rechecked before it is returned to the customer.
Figure. 1
Summary of Contents for HC-V500EB
Page 9: ...9 3 5 Formatting ...
Page 10: ...10 4 Specifications ...
Page 11: ...11 ...
Page 24: ...24 Fig D6 Fig D7 ...
Page 25: ...25 8 3 4 Removal of the Lens Frame Unit Fig D8 8 3 5 Removal of the Camera Lens Unit Fig D9 ...
Page 26: ...26 8 3 6 Removal of the Main P C B and SD Holder P C B Fig D10 Fig D11 ...
Page 27: ...27 Fig D12 Fig D13 8 3 7 Removal of the ESD P C B HC V500M only Fig D14 ...
Page 28: ...28 8 3 8 Removal of the LCD Case T Unit and LCD Unit Fig D15 Fig D16 ...
Page 40: ...Model No HC V500 V500M Schematic Diagram Note ...
Page 41: ...Model No HC V500 V500M Parts List Note ...
Page 42: ...Model No HC V500 V500M Main Connection Main P C B ...
Page 43: ...Model No HC V500 V500M Video Main P C B ...
Page 44: ...Model No HC V500 V500M Lens Drive Main P C B ...
Page 45: ...Model No HC V500 V500M AVIO Main P C B ...
Page 46: ...Model No HC V500 V500M HDMI Main P C B ...
Page 47: ...Model No HC V500 V500M Charge RTC Main P C B ...
Page 48: ...Model No HC V500 V500M MIC Main P C B ...
Page 49: ...Model No HC V500 V500M Photo Light Main P C B ...
Page 50: ...Model No HC V500 V500M Power Main P C B ...
Page 51: ...Model No HC V500 V500M MOS Connection Main P C B ...
Page 52: ...Model No HC V500 V500M SD Holder SD Holder P C B ...
Page 53: ...Model No HC V500 V500M Main P C B Component Side ...
Page 54: ...Model No HC V500 V500M Main P C B Foil Side ...
Page 55: ...Model No HC V500 V500M SD Holder P C B Component Side ...
Page 56: ...Model No HC V500 V500M SD Holder P C B Foil Side ...
Page 66: ...Model No HC V500 V500M Frame and Casing Section ...
Page 67: ...Model No HC V500 V500M Packing Parts and Accessories Section ...